My sitefinity site was down for a few hours, please helpCancel

My sitefinity site was down for a few hours, everything is back to normal after I restart the site in IIS. Please help, here is one of the events I can find in the windows event viewer. Nothing is logged in the sitefinity Error.log.

Please help, many thanks!

Event code: 3005

Event message: An unhandled exception has occurred.

Event time: 14/03/2011 10:18:12 p.m.

Event time (UTC): 14/03/2011 9:18:12 a.m.

Event ID: 7fe3efc7b209478eb715945522be881c

Event sequence: 6495

Event occurrence: 1

Event detail code: 0

Application information:

Application domain: /LM/W3SVC/4/ROOT-4-xxxxxxxxxxxxxxx

Trust level: Full

Application Virtual Path: /

Application Path: C:\Websites\xxxxxxxxxxxxx\

Machine name: BDWEB01

Process information:

Process ID: 2176

Process name: w3wp.exe

Account name: IIS APPPOOL\xxxxxxxxxxxxx

Exception information:

Exception type: SQLException

Exception
message: A transport-level error has occurred when sending the request
to the server. (provider: TCP Provider, error: 0 - An existing
connection was forcibly closed by the remote host.)

at Telerik.OpenAccess.RT.Adonet2Generic.Impl.PreparedStatementImp.executeQuery()

at OpenAccessRuntime.Relational.conn.PooledPreparedStatement.executeQuery()

We had similar problem before SP1. Please upgrade the project to SP1 release and let us know if the problem persists. Also make sure that the server is not down, because we closed the connection prior SP1 and system restart was required to get the project up and running.

Hi Ivan,
I am experiencing the same thing and my site doesn't has been working properly for a week now. I found these when I checked the logs:
- "The operation has timed out"
- "An existing connection was forcibly closed by the remote host"
- "The underlying connection was closed: An unexpected error occurred on a receive."

Ivan Dimitrov mentioned that SP1 of version Sitefinity 4.0 might not have such problems.

If the wcwp process on the site is consuming high amount of CPU time the problem is a performance problem most possibly in a control used on one or more of the pages on the site. To isolate the cause of the problem to a single control use the test scenario described in this KB article. Trough the test a control can be identified for causing the high CPU consumption as the CPU load will go down when the control is removed as part of the steps in the test.

Issue regarding high CPU utilization which leads to eventual site crashing when the CPU usage reaches 100% which we have encountered in Sitefintiy support are in most cases connected to a problematic control.

If a control appears to be the cause of the problem refer to how to performance optimize the implementation of the control from the suggestions in this documentation.

I have send you some questions and additional information in the support ticket you have opened. Once the problem is resolved you could send the solution with the community.

Regards,
Stefani Tacheva
Telerik

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